scholarly journals Bianchi type-I string cosmological model in the presence of a magnetic field: classical versus loop quantum cosmology approaches

2012 ◽  
Vol 339 (2) ◽  
pp. 371-377 ◽  
Author(s):  
Victor Rikhvitsky ◽  
Bijan Saha ◽  
Mihai Visinescu
2020 ◽  
Vol 17 (09) ◽  
pp. 2050133
Author(s):  
Kangujam Priyokumar Singh ◽  
Mahbubur Rahman Mollah ◽  
Rajshekhar Roy Baruah ◽  
Meher Daimary

Here, we have investigated the interaction of Bianchi type-I anisotropic cloud string cosmological model universe with electromagnetic field in the context of general relativity. In this paper, the energy-momentum tensor is assumed to be the sum of the rest energy density and string tension density with an electromagnetic field. To obtain exact solution of Einstein’s field equations, we take the average scale factor as an integrating function of time. Also, the dynamics and significance of various physical parameters of model are discussed.


2009 ◽  
Author(s):  
Mihai Visinescu ◽  
Bijan Saha ◽  
Victor Rikhvitsky ◽  
Madalin Bunoiu ◽  
Iosif Malaescu

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